Unit 4 Layers of the Earth

Which layer of the earth is made of iron and nickel (2 very dense metals)?

• Crust
• Mantle
• Core
• Hinsley

Which layer of the earth is made of mostly silicon and oxygen (2 very light elements)?

• Crust
• Mantle
• Core

As you go deeper into the earth, temperature ___________.

• increases (gets hotter)
• decreases (gets colder)
• stays the same

Approximately, what is the temperature of Earth’s core? (hint: water freezes at 0 degrees Celsius, and water boils at 100 degrees Celsius)

• 500 degrees Celsius
• 5,000 degrees Celsius
• 5 million degrees Celsius

Which type of crust is denser?

• continental
• oceanic
• pizza

Which type of crust is thinner?

• continental
• oceanic
• oizza

Which type of crust is made of mostly granite?

• continental
• ocreanic
• pizza

What happens at mid-ocean ridges?

• sea-floor spreading
• tsunamis
• trenches
• island arcs

What is the an example of a mid-ocean ridge?

• San Andres Fault
• Himalayan Mountains
• Mid Atlantic Ridge
• Red Sea

What type of boundaries form mid-ocean ridges?

• Convergent
• Divergent
• Transform